A "polymer" is a compund of linked units. They occur spontaneously in nature and through the wonders of chemistry. DNA, casein (from cow's milk), cellulose, and starch are all polymers. As are rayon, polyester, and polystyrene. So don't be afraid of the word polymer, it's a general term.

My suggestion for DPNs are the Bryspun brand. I them.

__________________
On the needles: Tempting for Kate, cabled jacket for Emma